A,B,C,D,E,F,G are 7 family members belonging to 3 generations. Two married couples one each of first and second generations. They travel is 3 cars - P,Q,R. No car has more than 3 members and has atleast one female in each car. C,who is granddaughter , doesnot travel with her grandfather and grandmother. B travels with his father E in car Q. F travels with her granddaughter D in car P. A travels with her daughter in car R. Who travels in cars P,Q,R and how are they related?
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